<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title></title>
    </head>
    <body>
        <script>
            const SCHOOL = "师院";
            /* 1.必须赋初值
            const x; */

            // 2.一般默认大写
            // 3、值不能修改
            // SCHOOL = "渭南交大";
            //4.块级作用域
            /* {
                const NAME = "ziming";
            }
            console.log(NAME); */

            //5.可以修改数组和对象的元素
            const NAME = ["tianming","shaoyu","dashu","ershu"];
            NAME.push("juzi");
            console.log(NAME);
        </script>
    </body>
</html>